R&D-based Economic Growth in a Supermultiplier Model

We investigate how economic growth in a demand-led economy with semi-endogenous productivity growth can be compatible with a stable employment path. Our model uses a Sraffian supermultiplier (SSM), and we endogenize the growth rate of autonomous demand, and semi-endogenize productivity growth. The basic model has a steady state that is consistent with a stable employment rate. Consumption smoothing (between periods of high and low employment) by workers is the mechanism that keeps the growing economy stable. We also introduce a version of the model where the burden for stabilization falls upon government fiscal policy. This also yields a stable growth path, although the parameter restrictions for stability are more demanding in this case